Dynamical Cooperative MAC Based on Optimal Selection of Multiple Helpers
Yun Li, Bin Qian Cao, Chonggang Wang, Xiaohu You, Ali Daneshmand, Hongcheng Zhuang, Tao Jiang · 2009
Cooperative communication can obtain spatial diversity without using multiple antennas, and thus achieve more reliable transmission or consume less power. Accordingly, a new cooperative MAC mechanism in wireless networks, the DCMAC, is proposed in this paper. The DCMAC makes full use of the broadcasting characteristics of wireless channel to obtain channel information, chooses the most suitable cooperative nodes, and reserves wireless channel efficiently. Evaluation results show that DCMAC can choose the most suitable cooperative nodes to improve system performance.